Robovero issue

Robovero issue

Hi,

I received my replacement Robovero today. I connected the mini USB to
the PC, and a solid green light came on. I plugged in the adapter
from Gumstix, 5v 3.5A Center positive, and a red light started
blinking. Good so far I think... Then I touch IC6 ant it is
painfully hot. This is just like the last board I had.

Can the folks at Gumstix comment if this is normal, and what the
function of IC6 is, and ideally why it is so hot?

Misc details:
The board WITHOUT a Gumstix mounted is pulling 2W solid once I
apply power.
I haven't let it have power for more than 10 seconds given the heat on IC6.

Re: Robovero issue

I am not from gumstix, but...is the ground to your computer/usb and the
wall wart/power supply the same ground? If you measure from the shell
of the usb plug and the shell of the power plug is there a voltage?
(check AC and DC)? Your 5V power supply may be floating or have a
offset. what if you plug in the 5V supply but do not plug the usb in,
does it heat up the board/parts?

On 09/13/2011 10:35 PM, Roger Unwin wrote:

> Hi,
>
> I received my replacement Robovero today. I connected the mini USB to
> the PC, and a solid green light came on. I plugged in the adapter
> from Gumstix, 5v 3.5A Center positive, and a red light started
> blinking. Good so far I think... Then I touch IC6 ant it is
> painfully hot. This is just like the last board I had.
>
> Can the folks at Gumstix comment if this is normal, and what the
> function of IC6 is, and ideally why it is so hot?
>
> Misc details:
> The board WITHOUT a Gumstix mounted is pulling 2W solid once I
> apply power.
> I haven't let it have power for more than 10 seconds given the heat on IC6.
>
> Thanks,
>
> Roger
>
> ------------------------------------------------------------------------------
> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry&reg; mobile platform with sessions, labs& more.
> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1> _______________________________________________
> gumstix-users mailing list
> [hidden email]> https://lists.sourceforge.net/lists/listinfo/gumstix-users> .

>
> I am not from gumstix, but...is the ground to your computer/usb and the
> wall wart/power supply the same ground? If you measure from the shell
> of the usb plug and the shell of the power plug is there a voltage?
> (check AC and DC)? Your 5V power supply may be floating or have a
> offset. what if you plug in the 5V supply but do not plug the usb in,
> does it heat up the board/parts?
>
>
> On 09/13/2011 10:35 PM, Roger Unwin wrote:
>> Hi,
>>
>> I received my replacement Robovero today. I connected the mini USB to
>> the PC, and a solid green light came on. I plugged in the adapter
>> from Gumstix, 5v 3.5A Center positive, and a red light started
>> blinking. Good so far I think... Then I touch IC6 ant it is
>> painfully hot. This is just like the last board I had.
>>
>> Can the folks at Gumstix comment if this is normal, and what the
>> function of IC6 is, and ideally why it is so hot?
>>
>> Misc details:
>> The board WITHOUT a Gumstix mounted is pulling 2W solid once I
>> apply power.
>> I haven't let it have power for more than 10 seconds given the heat on IC6.
>>
>> Thanks,
>>
>> Roger
>>
>> ------------------------------------------------------------------------------
>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>> Learn about the latest advances in developing for the
>> BlackBerry&reg; mobile platform with sessions, labs& more.
>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>> http://p.sf.net/sfu/rim-devcon-copy1>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>> .
>
>
> ------------------------------------------------------------------------------
> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry&reg; mobile platform with sessions, labs & more.
> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1> _______________________________________________
> gumstix-users mailing list
> [hidden email]> https://lists.sourceforge.net/lists/listinfo/gumstix-users>

Re: Robovero issue

Hi Roger,

How are you measuring the 2W power consumption? I measure 100mA at 5V
with a bench power supply connected to V_Batt. IC6 is a voltage
regulator that brings the power adapter 5V to 3.3V. I have not seen
IC6 overheat but others have reported the same problem. I will try to
get the board you've returned for testing.

> David,
>
> Just to try to short circuit that test, as I don't think they
> explicitly were (unless the board made them common ground)...
>
> Without the USB connected, just the power brick, the IC6 still rapidly
> heats up. So the only 2 leads in are from teh power brick...
>
> Roger
>
> On Tue, Sep 13, 2011 at 7:45 PM, David Welch <[hidden email]> wrote:
>>
>> I am not from gumstix, but...is the ground to your computer/usb and the
>> wall wart/power supply the same ground? If you measure from the shell
>> of the usb plug and the shell of the power plug is there a voltage?
>> (check AC and DC)? Your 5V power supply may be floating or have a
>> offset. what if you plug in the 5V supply but do not plug the usb in,
>> does it heat up the board/parts?
>>
>>
>> On 09/13/2011 10:35 PM, Roger Unwin wrote:
>>> Hi,
>>>
>>> I received my replacement Robovero today. I connected the mini USB to
>>> the PC, and a solid green light came on. I plugged in the adapter
>>> from Gumstix, 5v 3.5A Center positive, and a red light started
>>> blinking. Good so far I think... Then I touch IC6 ant it is
>>> painfully hot. This is just like the last board I had.
>>>
>>> Can the folks at Gumstix comment if this is normal, and what the
>>> function of IC6 is, and ideally why it is so hot?
>>>
>>> Misc details:
>>> The board WITHOUT a Gumstix mounted is pulling 2W solid once I
>>> apply power.
>>> I haven't let it have power for more than 10 seconds given the heat on IC6.
>>>
>>> Thanks,
>>>
>>> Roger
>>>
>>> ------------------------------------------------------------------------------
>>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>>> Learn about the latest advances in developing for the
>>> BlackBerry&reg; mobile platform with sessions, labs& more.
>>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>>> http://p.sf.net/sfu/rim-devcon-copy1>>> _______________________________________________
>>> gumstix-users mailing list
>>> [hidden email]>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>> .
>>
>>
>> ------------------------------------------------------------------------------
>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>> Learn about the latest advances in developing for the
>> BlackBerry&reg; mobile platform with sessions, labs & more.
>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>> http://p.sf.net/sfu/rim-devcon-copy1>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>
>
> ------------------------------------------------------------------------------
> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry&reg; mobile platform with sessions, labs & more.
> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1> _______________________________________________
> gumstix-users mailing list
> [hidden email]> https://lists.sourceforge.net/lists/listinfo/gumstix-users>

Re: Robovero issue

I am using a Kill-A-Watt with the gumstix wall-wart plugged into it. This is the replacement board, so this is the second board that has had IC 6 heat up on me.

I have a bench supply if it would be of value to power it with that and report back... I can do that in about 8 hours...

Thanks,

Roger

On Sep 14, 2011, at 10:38 AM, Neil MacMunn wrote:

> Hi Roger,
>
> How are you measuring the 2W power consumption? I measure 100mA at 5V
> with a bench power supply connected to V_Batt. IC6 is a voltage
> regulator that brings the power adapter 5V to 3.3V. I have not seen
> IC6 overheat but others have reported the same problem. I will try to
> get the board you've returned for testing.
>
> -
> Neil
>
>
>
> On Tue, Sep 13, 2011 at 7:50 PM, Roger Unwin <[hidden email]> wrote:
>> David,
>>
>> Just to try to short circuit that test, as I don't think they
>> explicitly were (unless the board made them common ground)...
>>
>> Without the USB connected, just the power brick, the IC6 still rapidly
>> heats up. So the only 2 leads in are from teh power brick...
>>
>> Roger
>>
>> On Tue, Sep 13, 2011 at 7:45 PM, David Welch <[hidden email]> wrote:
>>>
>>> I am not from gumstix, but...is the ground to your computer/usb and the
>>> wall wart/power supply the same ground? If you measure from the shell
>>> of the usb plug and the shell of the power plug is there a voltage?
>>> (check AC and DC)? Your 5V power supply may be floating or have a
>>> offset. what if you plug in the 5V supply but do not plug the usb in,
>>> does it heat up the board/parts?
>>>
>>>
>>> On 09/13/2011 10:35 PM, Roger Unwin wrote:
>>>> Hi,
>>>>
>>>> I received my replacement Robovero today. I connected the mini USB to
>>>> the PC, and a solid green light came on. I plugged in the adapter
>>>> from Gumstix, 5v 3.5A Center positive, and a red light started
>>>> blinking. Good so far I think... Then I touch IC6 ant it is
>>>> painfully hot. This is just like the last board I had.
>>>>
>>>> Can the folks at Gumstix comment if this is normal, and what the
>>>> function of IC6 is, and ideally why it is so hot?
>>>>
>>>> Misc details:
>>>> The board WITHOUT a Gumstix mounted is pulling 2W solid once I
>>>> apply power.
>>>> I haven't let it have power for more than 10 seconds given the heat on IC6.
>>>>
>>>> Thanks,
>>>>
>>>> Roger
>>>>
>>>> ------------------------------------------------------------------------------
>>>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>>>> Learn about the latest advances in developing for the
>>>> BlackBerry&reg; mobile platform with sessions, labs& more.
>>>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>>>> http://p.sf.net/sfu/rim-devcon-copy1>>>> _______________________________________________
>>>> gumstix-users mailing list
>>>> [hidden email]>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>>> .
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>>> Learn about the latest advances in developing for the
>>> BlackBerry&reg; mobile platform with sessions, labs & more.
>>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>>> http://p.sf.net/sfu/rim-devcon-copy1>>> _______________________________________________
>>> gumstix-users mailing list
>>> [hidden email]>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>>
>>
>> ------------------------------------------------------------------------------
>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>> Learn about the latest advances in developing for the
>> BlackBerry&reg; mobile platform with sessions, labs & more.
>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>> http://p.sf.net/sfu/rim-devcon-copy1>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>
>
> ------------------------------------------------------------------------------
> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry&reg; mobile platform with sessions, labs & more.
> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1> _______________________________________________
> gumstix-users mailing list
> [hidden email]> https://lists.sourceforge.net/lists/listinfo/gumstix-users

Re: Robovero issue

What is failure mode besides hotness, your gumstix doesn't bring up a console?

On Tue, 2011-09-13 at 19:50 -0700, Roger Unwin wrote:

David,
Just to try to short circuit that test, as I don't think they
explicitly were (unless the board made them common ground)...
Without the USB connected, just the power brick, the IC6 still rapidly
heats up. So the only 2 leads in are from teh power brick...
Roger
On Tue, Sep 13, 2011 at 7:45 PM, David Welch <[hidden email]> wrote:
>
> I am not from gumstix, but...is the ground to your computer/usb and the
> wall wart/power supply the same ground? If you measure from the shell
> of the usb plug and the shell of the power plug is there a voltage?
> (check AC and DC)? Your 5V power supply may be floating or have a
> offset. what if you plug in the 5V supply but do not plug the usb in,
> does it heat up the board/parts?
>
>
> On 09/13/2011 10:35 PM, Roger Unwin wrote:
>> Hi,
>>
>> I received my replacement Robovero today. I connected the mini USB to
>> the PC, and a solid green light came on. I plugged in the adapter
>> from Gumstix, 5v 3.5A Center positive, and a red light started
>> blinking. Good so far I think... Then I touch IC6 ant it is
>> painfully hot. This is just like the last board I had.
>>
>> Can the folks at Gumstix comment if this is normal, and what the
>> function of IC6 is, and ideally why it is so hot?
>>
>> Misc details:
>> The board WITHOUT a Gumstix mounted is pulling 2W solid once I
>> apply power.
>> I haven't let it have power for more than 10 seconds given the heat on IC6.
>>
>> Thanks,
>>
>> Roger
>>
>> ------------------------------------------------------------------------------
>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>> Learn about the latest advances in developing for the
>> BlackBerry&reg; mobile platform with sessions, labs& more.
>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>> http://p.sf.net/sfu/rim-devcon-copy1
>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]
>> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>> .
>
>
> ------------------------------------------------------------------------------
> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry&reg; mobile platform with sessions, labs & more.
> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1
> _______________________________________________
> gumstix-users mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>
------------------------------------------------------------------------------
BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
Learn about the latest advances in developing for the
BlackBerry&reg; mobile platform with sessions, labs & more.
See new tools and technologies. Register for BlackBerry&reg; DevCon today!
http://p.sf.net/sfu/rim-devcon-copy1
_______________________________________________
gumstix-users mailing list
[hidden email]https://lists.sourceforge.net/lists/listinfo/gumstix-users

Re: Robovero issue

I tried with the bench supply to V_BATT and it pulled 300ma @ 5V. Were you able to locate my last return for testing?

And now the big question, is this issue field fixable, or does it qualify for a RMA?

Roger

On Sep 14, 2011, at 10:38 AM, Neil MacMunn wrote:

> Hi Roger,
>
> How are you measuring the 2W power consumption? I measure 100mA at 5V
> with a bench power supply connected to V_Batt. IC6 is a voltage
> regulator that brings the power adapter 5V to 3.3V. I have not seen
> IC6 overheat but others have reported the same problem. I will try to
> get the board you've returned for testing.
>
> -
> Neil
>
>
>
> On Tue, Sep 13, 2011 at 7:50 PM, Roger Unwin <[hidden email]> wrote:
>> David,
>>
>> Just to try to short circuit that test, as I don't think they
>> explicitly were (unless the board made them common ground)...
>>
>> Without the USB connected, just the power brick, the IC6 still rapidly
>> heats up. So the only 2 leads in are from teh power brick...
>>
>> Roger
>>
>> On Tue, Sep 13, 2011 at 7:45 PM, David Welch <[hidden email]> wrote:
>>>
>>> I am not from gumstix, but...is the ground to your computer/usb and the
>>> wall wart/power supply the same ground? If you measure from the shell
>>> of the usb plug and the shell of the power plug is there a voltage?
>>> (check AC and DC)? Your 5V power supply may be floating or have a
>>> offset. what if you plug in the 5V supply but do not plug the usb in,
>>> does it heat up the board/parts?
>>>
>>>
>>> On 09/13/2011 10:35 PM, Roger Unwin wrote:
>>>> Hi,
>>>>
>>>> I received my replacement Robovero today. I connected the mini USB to
>>>> the PC, and a solid green light came on. I plugged in the adapter
>>>> from Gumstix, 5v 3.5A Center positive, and a red light started
>>>> blinking. Good so far I think... Then I touch IC6 ant it is
>>>> painfully hot. This is just like the last board I had.
>>>>
>>>> Can the folks at Gumstix comment if this is normal, and what the
>>>> function of IC6 is, and ideally why it is so hot?
>>>>
>>>> Misc details:
>>>> The board WITHOUT a Gumstix mounted is pulling 2W solid once I
>>>> apply power.
>>>> I haven't let it have power for more than 10 seconds given the heat on IC6.
>>>>
>>>> Thanks,
>>>>
>>>> Roger
>>>>
>>>> ------------------------------------------------------------------------------
>>>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>>>> Learn about the latest advances in developing for the
>>>> BlackBerry&reg; mobile platform with sessions, labs& more.
>>>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>>>> http://p.sf.net/sfu/rim-devcon-copy1>>>> _______________________________________________
>>>> gumstix-users mailing list
>>>> [hidden email]>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>>> .
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>>> Learn about the latest advances in developing for the
>>> BlackBerry&reg; mobile platform with sessions, labs & more.
>>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>>> http://p.sf.net/sfu/rim-devcon-copy1>>> _______________________________________________
>>> gumstix-users mailing list
>>> [hidden email]>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>>
>>
>> ------------------------------------------------------------------------------
>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>> Learn about the latest advances in developing for the
>> BlackBerry&reg; mobile platform with sessions, labs & more.
>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>> http://p.sf.net/sfu/rim-devcon-copy1>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>
>
> ------------------------------------------------------------------------------
> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry&reg; mobile platform with sessions, labs & more.
> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1> _______________________________________________
> gumstix-users mailing list
> [hidden email]> https://lists.sourceforge.net/lists/listinfo/gumstix-users

Re: Robovero issue

Given that the robovero is intended to be battery powered, the increased draw(1.5W vs 0.5W) is significant, and given that regulator very very hot, I can only assume it will eventually fail... As such, I would like to request a RMA, so I can have robovero that runs as coo, efficiently, and long lived as the one Neil references.

Sincerely,

Roger

On Sep 14, 2011, at 10:38 AM, Neil MacMunn wrote:

> Hi Roger,
>
> How are you measuring the 2W power consumption? I measure 100mA at 5V
> with a bench power supply connected to V_Batt. IC6 is a voltage
> regulator that brings the power adapter 5V to 3.3V. I have not seen
> IC6 overheat but others have reported the same problem. I will try to
> get the board you've returned for testing.
>
> -
> Neil
>
>
>
> On Tue, Sep 13, 2011 at 7:50 PM, Roger Unwin <[hidden email]> wrote:
>> David,
>>
>> Just to try to short circuit that test, as I don't think they
>> explicitly were (unless the board made them common ground)...
>>
>> Without the USB connected, just the power brick, the IC6 still rapidly
>> heats up. So the only 2 leads in are from teh power brick...
>>
>> Roger
>>
>> On Tue, Sep 13, 2011 at 7:45 PM, David Welch <[hidden email]> wrote:
>>>
>>> I am not from gumstix, but...is the ground to your computer/usb and the
>>> wall wart/power supply the same ground? If you measure from the shell
>>> of the usb plug and the shell of the power plug is there a voltage?
>>> (check AC and DC)? Your 5V power supply may be floating or have a
>>> offset. what if you plug in the 5V supply but do not plug the usb in,
>>> does it heat up the board/parts?
>>>
>>>
>>> On 09/13/2011 10:35 PM, Roger Unwin wrote:
>>>> Hi,
>>>>
>>>> I received my replacement Robovero today. I connected the mini USB to
>>>> the PC, and a solid green light came on. I plugged in the adapter
>>>> from Gumstix, 5v 3.5A Center positive, and a red light started
>>>> blinking. Good so far I think... Then I touch IC6 ant it is
>>>> painfully hot. This is just like the last board I had.
>>>>
>>>> Can the folks at Gumstix comment if this is normal, and what the
>>>> function of IC6 is, and ideally why it is so hot?
>>>>
>>>> Misc details:
>>>> The board WITHOUT a Gumstix mounted is pulling 2W solid once I
>>>> apply power.
>>>> I haven't let it have power for more than 10 seconds given the heat on IC6.
>>>>
>>>> Thanks,
>>>>
>>>> Roger
>>>>
>>>> ------------------------------------------------------------------------------
>>>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>>>> Learn about the latest advances in developing for the
>>>> BlackBerry&reg; mobile platform with sessions, labs& more.
>>>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>>>> http://p.sf.net/sfu/rim-devcon-copy1>>>> _______________________________________________
>>>> gumstix-users mailing list
>>>> [hidden email]>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>>> .
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>>> Learn about the latest advances in developing for the
>>> BlackBerry&reg; mobile platform with sessions, labs & more.
>>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>>> http://p.sf.net/sfu/rim-devcon-copy1>>> _______________________________________________
>>> gumstix-users mailing list
>>> [hidden email]>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>>
>>
>> ------------------------------------------------------------------------------
>> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
>> Learn about the latest advances in developing for the
>> BlackBerry&reg; mobile platform with sessions, labs & more.
>> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
>> http://p.sf.net/sfu/rim-devcon-copy1>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]>> https://lists.sourceforge.net/lists/listinfo/gumstix-users>>
>
> ------------------------------------------------------------------------------
> BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry&reg; mobile platform with sessions, labs & more.
> See new tools and technologies. Register for BlackBerry&reg; DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1> _______________________________________________
> gumstix-users mailing list
> [hidden email]> https://lists.sourceforge.net/lists/listinfo/gumstix-users